Debt and Credit Arrangements - Senior Secured and Unsecured Notes - Narrative (Details) - USD ($)		12 Months Ended
	Dec. 22, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument
Interest paid		$ 219,800,000	$ 25,700,000	$ 11,700,000
Unamortized discount		26,900,000	29,900,000
Debt issuance cost		26,100,000	0	0
Financing costs amortization		17,200,000	2,900,000	$ 8,300,000
Debt, Long-term and Short-term, Combined Amount		3,834,900,000	2,296,700,000
Secured and Unsecured Debt
Debt Instrument
Redemption price, percentage of principal amount redeemed (percent)	40.00%
Redemption price (percent)	101.00%
Unamortized discount	$ 30,000,000.0
Unamortized debt issuance cost	36,800,000
Debt issuance cost incurred		32,000,000.0	4,800,000
Financing costs amortization		3,800,000
Senior secured notes due 2030 | Secured Debt
Debt Instrument
Debt instrument, face amount	$ 1,460,000,000	$ 1,460,000,000	1,460,000,000
Debt instrument stated interest rate (percent)	7.50%	7.50%
Issue price (percent)	98.661%
Senior unsecured notes due 2031 | Unsecured Debt
Debt Instrument
Debt instrument, face amount	$ 510,000,000.0	$ 510,000,000.0	$ 510,000,000.0
Debt instrument stated interest rate (percent)	9.50%	9.50%
Issue price (percent)	97.949%